[. . . ] Unplug the charger from the power source and remove the batteries when they are fully charged. For best performance and safety, charge only GP NiMH batteries with GP PowerBank. For brand new batteries, 2 to 3 times of charging and usage cycles are required to optimize the batteries' performance. [. . . ] If batteries are stored for more than one week, always recharge them before use. It is normal for batteries to become warm during charging and they will gradually cool down to room temperature after fully charged. Remove batteries from the electrical device if the device is not going to be used for a long time. Do not charge other types of batteries, such as alkaline, carbon zinc, lithium, rechargeable alkaline or any other kinds of batteries unspecified. Never use an extension cord or any attachment not recommended by GP, otherwise may lead to a risk of fire, electric shock or personal injury. Unplug the charger from the outlet before attempting cleaning or when not in use. , use an attachment plug adapter of the proper configuration for the power outlet. This power unit is intended to be correctly orientated in a vertical or floor mount position. Remove batteries from the electrical device if the device is not going to be used for a long time. Do not charge other types of batteries, such as alkaline, carbon zinc, lithium, rechargeable alkaline or any other kinds of batteries unspecified. Never use an extension cord or any attachment not recommended by GP, otherwise may lead to a risk of fire, electric shock or personal injury. Unplug the charger from the outlet before attempting cleaning or when not in use. , use an attachment plug adapter of the proper configuration for the power outlet. This power unit is intended to be correctly orientated in a vertical or floor mount position. This appliance is not intended for use by young children or infirm persons unless they have been adequately supervised by a responsible person to ensure that they can use the appliance safety. Young children should be supervised to ensure that they do not play with the appliance. [. . . ] This appliance is not intended for use by young children or infirm persons unless they have been adequately supervised by a responsible person to ensure that they can use the appliance safety. Young children should be supervised to ensure that they do not play with the appliance. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undersired operation. [. . . ]